Return-Path: Received: from smtp105.mail.sc5.yahoo.com ([66.163.169.225] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with SMTP id 523537 for flyrotary@lancaironline.net; Mon, 08 Nov 2004 19:07:54 -0500 Received-SPF: none receiver=logan.com; client-ip=66.163.169.225; envelope-from=prvt_pilot@yahoo.com Received: from unknown (HELO your6oef4glwm9) (prvt?pilot@24.136.229.34 with login) by smtp105.mail.sc5.yahoo.com with SMTP; 9 Nov 2004 00:07:24 -0000 From: "Steve Brooks" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: Assembled 13B block today... Date: Mon, 8 Nov 2004 19:10:16 -0500 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00C8_01C4C5C6.94EB6DB0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) In-Reply-To: Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 This is a multi-part message in MIME format. ------=_NextPart_000_00C8_01C4C5C6.94EB6DB0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit MessageMy JDM engine was a 89-91 turbo. It had wire springs in the corner seals. Steve Brooks -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Russell Duffy Sent: Monday, November 08, 2004 6:05 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Assembled 13B block today... When I purchased the 3 motors en block, the seller was under the impression that all were FC's.. however he had not done any teardown and frankly I am at a loss to determine the difference looking at the external aspect of the 4 port FC's and FD's...The only clue that jumped out at me was the corner seal springs, otherwise they looked and felt similar (no scale handly). Hi Dave, I looked at your picture of the cannibalized engine, and can see enough to say that it's not an FD. The FD did not use the crank angle sensor that I see in the picture, and the water pump housing was much different. So, assuming all your engines have very similar looking front covers, I'd say they're all 2nd gen. Next problem, is figuring out what year the engine is. As you can see from the chart, there are two listings for 2nd gen turbo engines, and they used rotors that were different in compression, and weight. If I had to take a wild guess, I'd say that maybe the second engine you opened up was the later 89-92 version, which "may" have had the improved corner seal spring. Again, that's just a SWAG. Here's what you can do though- get access to a scale that's accurate enough to tell the difference between 9.54 lb, and 10.04 lb. Finish tearing down the second engine enough to get the rotor out, and clean it up. Now you can weight that rotor, and the original one from the first engine. If you're luck, the will weigh the same. Good luck, Rusty (no fair putting your thumb on the scale) --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.788 / Virus Database: 533 - Release Date: 11/1/2004 ------=_NextPart_000_00C8_01C4C5C6.94EB6DB0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Message
My JDM=20 engine was a 89-91 turbo.  It had wire springs in the corner=20 seals.
 
Steve=20 Brooks
-----Original Message-----
From: Rotary motors in = aircraft=20 [mailto:flyrotary@lancaironline.net]On Behalf Of Russell=20 Duffy
Sent: Monday, November 08, 2004 6:05 PM
To: = Rotary=20 motors in aircraft
Subject: [FlyRotary] Re: Assembled 13B = block=20 today...

 When I purchased the 3 motors en block, the seller was = under the=20 impression that all were FC's.. however he had not done any teardown = and=20 frankly I am at a loss to determine the difference looking at the = external=20 aspect of the 4 port FC's and FD's...The only clue that jumped out at = me was=20 the corner seal springs, otherwise they looked and felt similar (no = scale=20 handly).  
 
  Hi = Dave,
 
I looked at=20 your picture of the cannibalized engine, and can see enough to say = that it's=20 not an FD.  The FD did not use the crank angle sensor = that I=20 see in the picture, and the water pump housing was much = different.  So,=20 assuming all your engines have very similar looking front=20 covers, I'd say they're all 2nd = gen.  
 
Next=20 problem, is figuring out what year the engine is.  As you can see = from=20 the chart, there are two listings for 2nd gen turbo engines, and they = used=20 rotors that were different in compression, and weight.  If I had = to take=20 a wild guess, I'd say that maybe the second engine you opened up = was the=20 later 89-92 version, which "may" have had the improved corner seal=20 spring.  Again, that's just a SWAG.  Here's what you = can do=20 though- get access to a scale that's accurate enough to tell the=20 difference between 9.54 lb, and 10.04 lb.  Finish tearing = down the=20 second engine enough to get the rotor out, and clean it up.  Now = you can=20 weight that rotor, and the original one from the first engine.  = If you're=20 luck, the will weigh the same.  
 
Good=20 luck,
Rusty (no=20 fair putting your thumb on the=20 scale)  
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